How can i make my material more prominent?
Consider reflective glossy surfaces as dominates the NASA spacecraft.  Which is making me hungry for Jiffy Pop.
Viewer visible light fixtures are an option.  Viewer means the person seeing your image. You must judge the technical and artistic merit.
Viewer invisible lights are an option.  Plane with EMISSION material.  Diffuse materials are to complement. Specular at your own risk. Consider parenting the light plane to the spacecraft.  To make them invisible to the user set the object option ... Visibility Panel ...  [Camera] to unchecked false.
Consider scaling the diffuse component.
Consider light groups for Blender Render.